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   Tapered Optical Fiber Coated With Zno Nanorods For Detection of Ethanol Concentration in Water  
   
نویسنده Azad Saeed ,Parvizi Roghaieh ,Sadeghi Ebrahim
منبع International Journal Of Optics And Photonics - 2018 - دوره : 12 - شماره : 2 - صفحه:109 -118
چکیده    This work presents zno nanorods coated multimode optical fiber sensing behavior in response to ethanol solution. the sensor operates based on modulation of light intensity which arises from manipulation of light interaction with the ambient environment in sensing region. for this purpose, two steps are experimentally applied here; etching and then coating fiber with zno nanorods to provide stronger evanescent waves causing an enhanced interaction. long length of fiber (15 mm) was etched uniformly and then well-ordered zno nanorods were grown hydrothermally on the core of optical fiber. fiber coated with zno demonstrated an enhanced sensing performances such that response time decreased to 0.6s, linearity increased to 97% and sensitivity improved. applicable features of the proposed device such as fast response time and high linearity make it favorable candidate for fiber optic sensing applications.
کلیدواژه Evanescent Field ,Ethanol Sensor ,Hydrothermal ,Optical Fiber Sensor ,Zno Nanorods
آدرس University Of Yasouj, Department Of Physics, ایران, University Of Yasouj, Department Of Physics, ایران, University Of Yasouj, Department Of Physics, ایران
پست الکترونیکی e.sadeghi@gmail.com
 
     
   
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